期刊论文

Structure characterization and release properties of azoxystrobin and difenoconazole compound pesticide microspheres

中文

植物保护

0529-1542

2017

43

4

56-60

10.3969/j.issn.0529-1542.2017.04.010

:化学肥料 2016YFD0201200:农药减施增效综合技术研发专项 110201302014:中国烟草总公司科技重点项目 15K064:湖南省高校重点实验室平台开放基金 CX2016B304:湖南省研究生科研创新项目

本校为第一机构

以PBS/PLA共混物为复合载体,嘧菌酯和苯醚甲环唑为包埋有效成分,聚乙烯醇(PVA-1788)为分散剂,采用溶剂挥发法制备了嘧菌酯·苯醚甲环唑PBS/PLA微球。通过光学显微镜、扫描电子显微镜、Nicolet 6700型傅立叶变换红外光谱仪、高效液相色谱(HPLC)等表征复配农药微球的性质,采用透析袋法测定其缓释性能。结果表明,所得的嘧菌酯·苯醚甲环唑PBS/PLA微球中嘧菌酯的载药量和包埋率分别为14.30%、85.06%,苯醚甲环唑的载药量和包埋率为9.47%、90.18%,且微球球形规整,平均粒径为7.20 μm。嘧菌酯·苯醚甲环唑PBS/PLA微球具有良好的缓释性能,并且2种活性成分的释放量之比与其最佳复配比接近,可以达到增效目...

The microspheres containing azoxystrobin and difenoconazole were prepared by emulsion solvent evaporation method using PBS/PLA blends as microsphere delivery, azoxystrobin and difenoconazole as core materials and PVA-1788 as disperser. The compound pesticide microsphere was characterized by scanning electron microscope(SEM), optical microscope(OM), Nicolet 6700 FTIR spectroradiometer(FTIR Spectrometer) and high-performance liquid chromatography(HPLC), and the performance of its controlled release was studied by dialysis bag method. The results ...